DocumentCode
3338525
Title
Notice of Retraction
Catalytic Ozonation of Paper Mill Effluent by Activated Carbon (AC), TiO2/AC, Al2O3 and TiO2/Al2O3
Author
Li-rong Lei ; You-ming Li ; Li-ming Ma ; Yuan-cai Chen
Author_Institution
State Key Lab. of Pulp & Paper Eng., South China Univ. of Technol., Guangzhou, China
fYear
2011
fDate
10-12 May 2011
Firstpage
1
Lastpage
4
Abstract
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
Although traditional biological treatments effectively reduce the pollution level of paper mill effluent, biologically treated effluent usually can not meet the effluent emission standard. The objective of this study is to investigate the treatment efficiency of the biologically treated effluent by single ozonation and ozonation in the presence of activated carbon (AC), TiO2/AC, Al2O3 and TiO2/Al2O3 catalysts. Results showed that treatment efficiency was enhanced by the simultaneous use of ozone and the catalysts, evaluated as chemical oxygen demand (COD) and color removal rates. The COD and color removal rates reached 51% and 91% for ozonation with TiO2/AC, 55% and 92% for ozonation with TiO2/Al2O3 catalyst, compared with 37% and 83% for single ozonation. It was also found that BOD5/COD effectively increased after ozonation and catalytic ozonation, indicating obvious enhancement of the biodegradability of the effluent.
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
Although traditional biological treatments effectively reduce the pollution level of paper mill effluent, biologically treated effluent usually can not meet the effluent emission standard. The objective of this study is to investigate the treatment efficiency of the biologically treated effluent by single ozonation and ozonation in the presence of activated carbon (AC), TiO2/AC, Al2O3 and TiO2/Al2O3 catalysts. Results showed that treatment efficiency was enhanced by the simultaneous use of ozone and the catalysts, evaluated as chemical oxygen demand (COD) and color removal rates. The COD and color removal rates reached 51% and 91% for ozonation with TiO2/AC, 55% and 92% for ozonation with TiO2/Al2O3 catalyst, compared with 37% and 83% for single ozonation. It was also found that BOD5/COD effectively increased after ozonation and catalytic ozonation, indicating obvious enhancement of the biodegradability of the effluent.
Keywords
activated carbon; biodegradable materials; catalysis; catalysts; effluents; environmental degradation; industrial waste; ozonation (materials processing); paper mills; Al2O3; TiO2; activated carbon; biodegradability; biological treatments; biologically treated effluent; catalyst; catalytic ozonation; chemical oxygen demand; color removal rates; paper mill effluent; pollution level; Aluminum oxide; Biology; Carbon; Carbon dioxide; Color; Effluents; Paper mills;
fLanguage
English
Publisher
ieee
Conference_Titel
Bioinformatics and Biomedical Engineering, (iCBBE) 2011 5th International Conference on
Conference_Location
Wuhan
ISSN
2151-7614
Print_ISBN
978-1-4244-5088-6
Type
conf
DOI
10.1109/icbbe.2011.5781144
Filename
5781144
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